Laser Beams From CALIPSO

From: Gregg Hendry (
Date: Sun May 27 2012 - 17:32:05 UTC

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    The atmosphere here was quite hazy last night making for good conditions to
    attempt an observation of the pulsed laser beams from CALIPSO (29108).  I
    set up 1990 meters east of the satellite's geodetic ground track and saw a
    very nice apparition of 4 to 5, long, bright green beams emanating from
    zenith and disappearing behind some trees to the east.
    Gregg Hendry
    Note: The laser is pointed 3 degrees forward of nadir which puts the beam
    path about 2000 meters east and 5 seconds ahead of the satellite's ground
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